:root {
  --brand: #6428E5;
  --brand-dark: #1F0855;
  --text: #1a1a1a;
  --text-light: #555;
  --bg: #faf8ff;
  --border: #e5e5ea;
  --accent-bg: #f0e9ff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: -apple-system, "SF Pro Display", "Segoe UI", "Inter", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 17px;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}

header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 24px;
  margin-bottom: 32px;
}

.brand {
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand);
  font-weight: 700;
  text-decoration: none;
  display: inline-block;
  margin-bottom: 8px;
}

.updated {
  color: var(--text-light);
  font-size: 14px;
  margin-top: 4px;
}

.lang-toggle {
  display: flex;
  gap: 16px;
  margin: 12px 0 20px;
  font-size: 14px;
  color: var(--text-light);
}

.lang-toggle a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 500;
}

.lang-toggle a:hover { color: var(--brand); }

.lang-toggle a.active {
  color: var(--brand);
  font-weight: 700;
}

h1, h2, h3 {
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 {
  font-size: 36px;
  margin: 0 0 4px;
}

h2 {
  font-size: 22px;
  margin: 36px 0 12px;
}

h3 {
  font-size: 18px;
  margin: 24px 0 8px;
}

p, li {
  margin-bottom: 14px;
  color: var(--text);
}

ul, ol {
  margin-left: 24px;
  margin-bottom: 16px;
}

li { margin-bottom: 6px; }

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover { text-decoration: underline; }

table {
  border-collapse: collapse;
  width: 100%;
  margin: 16px 0 24px;
  font-size: 15px;
}

th, td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--accent-bg);
  font-weight: 700;
}

code {
  background: var(--accent-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

footer {
  margin-top: 80px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-light);
}

footer a { color: var(--text-light); }
footer a:hover { color: var(--brand); }

footer .links { display: flex; gap: 18px; flex-wrap: wrap; }

/* Landing page */
.landing {
  text-align: center;
  padding-top: 100px;
}

.landing .hero-title {
  font-size: 56px;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--brand-dark), var(--brand));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.landing .tagline {
  font-size: 22px;
  color: var(--text-light);
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.store-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.store-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--brand-dark);
  color: #fff;
  padding: 14px 24px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
}

.store-button:hover {
  background: var(--brand);
  text-decoration: none;
}

/* Umbrella app list (root SortD page) */
.app-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 520px;
  margin: 0 auto 40px;
  text-align: left;
}

.app-card {
  display: block;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 24px;
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.app-card:hover {
  border-color: var(--brand);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(100, 40, 229, 0.12);
  text-decoration: none;
}

.app-name {
  display: block;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--brand-dark);
  margin-bottom: 6px;
}

.app-desc {
  display: block;
  font-size: 16px;
  color: var(--text-light);
  margin-bottom: 14px;
}

.app-status {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand);
  background: var(--accent-bg);
  padding: 4px 12px;
  border-radius: 999px;
}

.app-card--placeholder {
  background: transparent;
  border-style: dashed;
  opacity: 0.65;
}

.app-card--placeholder:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--border);
}

@media (max-width: 600px) {
  .container { padding: 40px 18px 60px; }
  h1 { font-size: 28px; }
  .landing .hero-title { font-size: 40px; }
  .landing .tagline { font-size: 18px; }
}